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Shop the best prices on 8,061 great value gas detectors. Shopping for gas detectors is easy with Fruugo, with SALE discounts, offers and savings on Viewleaf, Other, GreenZech and more. Buy gas detectors online safely with Fruugo, with secure payment and fast shipping to Canada.

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1,409 - 1,440 of 3,200
CO2 Meter Digital Tester Carbon Dioxide Detector Air Quality Monitor CO2 Tester
$89.00 Save $40.00 RRP: $129.00
Oxygen Sensor AO-02 Gas Detector Compatible with AO2 AA428-210 AO2PTB-18.10 2pcs
$64.00 Save $30.00 RRP: $94.00
5 in 1 Air Quality Monitor TVOC HCHO Temperature Humidity CO2 Meter, USB Rechargeable CO2 Detector
$84.00 Save $45.00 RRP: $129.00
UT336A Refrigerant Leak Detector Cfcs Hcfcs Hfcs Leakage Tester for Air Conditioning Automobile Refr
$89.00 Save $60.00 RRP: $149.00
Mini Gas Detector HT66 Household Portable Gas Tester with ble and Visual Alarms
$59.00 Save $25.00 RRP: $84.00
Tuya Wifi Air Quality Monitor Smart Home CO2 Detector, Wifi
$28.95 Save $3.00 RRP: $31.95
Tuya WIFI Combustible Gas Detector Gas Alarm Gas Detection Sensor,B
$30.95
Nitrogen Dioxide Detector NO2 Gas Meter 0‑50ppm 3.5in TFT Color Screen Handheld Portable Equipment
$1,649.00 Save $50.00 RRP: $1,699.00
LPG Gas Leak Alarm de Gas Sensor Alarm Combustible Gas Leak Detector for Home/Workplace/Travel
$21.95 Save $13.00 RRP: $34.95
WIFI Combustible Gas Detector Gas Alarm Digital Combustible Gas Detection Instrument Gas Leak Tester Intelligent Air Quality Detector with Sound Alarm
$39.95 Save $6.00 RRP: $45.95
SCD41 Gas Sensor Module Detects CO2 Carbon Dioxide Temperature B
$31.95 Save $3.00 RRP: $34.95
Electrochemical CH2O Formaldehyde Sensor Gas HCHO Sensor Module Smart Home Devices
$15.95 Save $11.00 RRP: $26.95
ZE16B-COCarbon Monoxide Gas Sensor Module Electrochemical Alarm Car Household CODetection
$14.95 Save $4.00 RRP: $18.95
Multifunctional Air Quality Meter Indoor HCHO TVOC Carbon Monoxide CO2 PM2.5 PM10 Temperature and Hu
$33.95 Save $6.00 RRP: $39.95
HT-1890 Gas Pressure Gauge Manometer Digital Manometer Data Hold Dual Port Air Pressure Gauge HVAC G
$74.00 Save $15.00 RRP: $89.00
Indoor Air Quality Monitor,CO2 Monitor/Temperature/Formaldehyde Detector TVOC for Rooms,Grow Tents w
$20.95 Save $4.00 RRP: $24.95
Portable Handheld Meter O3 Detector Yzer Sensor Gas Detector
$219.00 Save $330.00 RRP: $549.00
O3 Ozone Meter Ozone Analyzer Air Detector Intelligent Sensor Ozone Counter Air Quality Pollution Monitor(,)
$149.00 Save $110.00 RRP: $259.00
Combustible Gas Leak Detector Gd-3308 16inch 10000ppm Visible Audible And Vibration Alarm
$674.00
Industrial 4 In 1 Gas Detector Co O2 H2s Combustible Gas Tester 120000 Data Logging Sound Light Vibration Alarm Gas Analyzer
$574.00
-z19c Ir Infrared Co2 Sensor Module Carbon Dioxide Gas Sensor Ndir For Co2 Monitor 400-5000ppm Uart
$74.00 Save $20.00 RRP: $94.00
Detector Portable O3 /Temperature/Humidity Tester Air Quality Household O3 Monitor USB Charging Bl
$54.00 Save $10.00 RRP: $64.00
NOYAFA Formaldehyde Tester Indoor Pollution Detector Household Air Quality Monitor
$31.95 Save $9.00 RRP: $40.95
Multi Gas Detector Gas Meter O2 H2S CO 4 in 1 Oxygen Hydrogen Sulfide Carbon Monoxide Combustible G
$209.00
Combustible Gas Detector Alarm Portable Gas Leak Tester Universal for Factories Garages
$54.00 Save $15.00 RRP: $69.00
WJL-6000 High Sensitivity Halogen Gas Refrigerant Leak Detector Analyzer
$50.95 Save $18.05 RRP: $69.00
20-In-1 Tuya WIFI Air Quality Detector CO/CO2/TVOC/HCHO/PM2.5/PM1.0/PM10/Temp/Humidity 5Pcs Subunits
$139.00 Save $30.00 RRP: $169.00
CO2 Detector Portable CO2 Monitor Carbon Dioxide Detector Temperature Humidity Air Quality Meter LCD CO2 Meter Alarm
$59.00 Save $10.00 RRP: $69.00
2C012,13 in 1 Tuya WIFI Air Quality Detector CO2,CO,PM2.5 Formaldehyde TVOC Temperature and Humidity(with 5 Slave Units)
$109.00 Save $30.00 RRP: $139.00
Air Conditioning Refrigerant Leak Tester Leak Detector for R-134a R410a R407a R22 RLD-382P US Plug
$189.00 Save $20.00 RRP: $209.00
CO2 Data Logger Monitor Portable Carbon Dioxide Detector With Upgraded NDIR Sensor Air Quality Monitor Digital Display
$49.95 Save $24.05 RRP: $74.00
Air Quality Monitor Formaldehyde Detector Indoor Pollution Meter Sensor Tester For New House
$139.00 Save $70.00 RRP: $209.00